title: Characteristics of tight binding repressors of the lac operon.
mesh_terms: D001483:Base Sequence; D004247:DNA; D004926:Escherichia coli / Q000235:genetics; D007763:Lac Operon; D009154:Mutation; D011485:Protein Binding; D012097:Repressor Proteins; D014157:Transcription Factors; D001616:beta-Galactosidase / Q000096:biosynthesis
chemical_list: D012097:Repressor Proteins; D014157:Transcription Factors; D004247:DNA; D001616:beta-Galactosidase